Abstract: A method including providing Au-doped Co nanoparticles. The nanoparticles include a combination of non-ferromagnetic nanoparticles and weakly ferromagnetic nanoparticles. The nanoparticles each have an exterior surface. The surfaces of the nanoparticles are functionalized with 7-(5-uracil-ylcarbamoyl)heptanoic acid. A polymer is provided having a general formula including a uracil group. A dispersion is formed by agitating a solution of the nanoparticles. The solution is spin cast into a film. The film is heated under vacuum at a first temperature, TFM, resulting in inducing ferromagnetism in the non-ferromagnetic nanoparticles and converting the non-ferromagnetic nanoparticles to ferromagnetic nanoparticles, and resulting in enhancing ferromagnetism in the weakly ferromagnetic nanoparticles. The nanoparticles are aligned such that magnetic easy axes of the nanoparticles are oriented by applying a magnetic field to the dispersion while at a second temperature less than TFM.

Abstract: Disclosed is an aromatic polyimide film having specific elastic modulus and thermal expansion coefficient. Also disclosed is a method for producing such an aromatic polyimide film. Specifically disclosed is an aromatic polyimide film which is composed of an aromatic polyimide containing not less than 70 mol % of repeating units represented by the following formula (I): (I) while satisfying the following relations (1) and (2): CTEMD??11×MiMD+70??(1) CTETD??11×MiTD+70??(2) wherein CTEMD represents the in-plane thermal expansion coefficient (ppm·K?1) in the machine direction; CTETD represents the in-plane thermal expansion coefficient (ppm·K?1) in the transverse direction; MiMD represents the elastic modulus (GPa) in the machine direction; and MiTD represents the elastic modulus (GPa) in the transverse direction. Also specifically disclosed is a method for producing such an aromatic polyimide film.

Abstract: An optical film producing method, comprises steps of: extruding a melted material including a melted cellulose ester resin from a casting die by using an extruding device; forming a film by pressing the extruded melted material between a first rotating member and a second rotating member; and winding up the formed film, wherein the following formulas are satisfied: 30° C.?T1?T2?60° C., 0° C.?T2?T3?20° C., Tg<T3, where T1 is the temperature of the melted material at an exit of the casting die, T2 is the temperature of the film at a point where the film firstly contacts the first rotating member, T3 is the temperature of the film at a point where the film is pressed between the first rotating member and the second rotating member, and Tg is the glass transition temperature of the film.

Abstract: The invention relates to a method for making a ground coating made of a thermoplastic material, that comprises the steps of (a) depositing a layer of a liquid component on a substrate, the liquid component being selected from a plastisol, an organosol or an SBR rubber emulsion, (b) powdering solid particles on the liquid component layer, and (c) applying press heat in order to form a ground coating having a smooth surface. The invention also relates to a device for obtaining such coatings.

Abstract: A polymer film producing apparatus has a moving support on which dope containing polymer and solvent is cast to form a cast film. The cast film is stripped from the support to obtain a polymer film containing the solvent, and the polymer film is dried. A first gas flow duct has gas nozzles for causing a first dry gas to flow toward the cast film. A second gas flow duct has a gas outlet disposed downstream from the gas nozzles, and positioned higher than a height of the gas nozzles relative to the support, for causing a second dry gas to flow toward the cast film in a moving direction of the support. Furthermore, the first gas flow duct includes a gas blow wall for defining the first flow path by opposing to the support. The gas blow wall has the gas nozzles.

Abstract: A method for producing a colorless transparent resin film by a solution flow casting method containing: flow-casting an organic solvent solution of a polyamic acid or a polyimide on a support; and drying, the method containing at least the following step (1), step (2) and step (3) in this order, and an apparatus therefor: (1) a step of flow-casting an organic solvent solution of a polyamic acid or polyamide on a support, (2) a step of evaporating the organic solvent while blowing a gas having an oxygen content of from 0.001 to 15% by volume at a temperature of from 100 to 170° C. onto the flow-cast material, and releasing as a self-supporting film from the support, and (3) a step of performing the following step (3-1) and step (3-2) in this order: (3-1) a step of lowering a residual ratio of the organic solvent in the self-supporting film while blowing a gas having an oxygen content of 15% by volume or less at a temperature of from 100 to 250° C.

Abstract: Disclosed is a process for manufacturing a polarizing plate protecting film comprising the steps of providing a film formation composition containing cellulose resin having a total acyl substitution degree of from 2.5 to 2.9, a plasticizer and a hindered amine or hindered phenol compound, heat-melting the film formation composition to obtain a melt, extruding the melt to be in the form of sheet, and cooling the extruded sheet to form a film, wherein the cellulose resin contains an alkaline earth metal in an amount of from 1 to 50 ppm and a residual sulfuric acid (in terms of sulfur content) in an amount of from 0.1 to 45 ppm, based on the weight of cellulose resin.

Abstract: In a mixing tank (12), a TAC is dissolved to a solvent so as to be swollen. Thus a mixture (25) is obtained, and fed to a heating device (15) by driving a pump (26). The heating device (15) heats the mixture (25), such that the solid content in the mixture may be dissolved. The mixture (25) is fed out as a dope (27) from the heating device (15) to a cooling device (16). The dope (27) is cooled down by the cooling device (16) to a surface temperature of a cooling drum (42) onto which the dope (27) is to be cast. Thus impurities containing hemicellulose and the like are precipitated, and the dope (27) is filtrated such that the impurities may be trapped. The dope (27) is cast onto the cooling device (16) while the precipitation of the impurities is prevented after the casting.

Abstract: A camera for capturing a casting bead is provided at each side end of a discharge port in a width direction thereof. Plural speakers are provided at the vicinity of an opening of a decompression chamber. The camera continuously captures the casting bead, and outputs image data thereof to a control unit. The control unit includes a vibration detector and a suppressing vibration generator. The vibration detector detects vibration of the casting bead based on the plural image data. The suppressing vibration generator generates suppressing vibration signal representing the phase and amplitude of the suppressing vibration for suppressing the vibration generated in the thickness direction of the casting bead. The control unit controls the speakers based on the suppressing vibration signal to output sound wave. Thereby, the suppressing vibration is applied to the casting bead.

Abstract: Disclosed are a method and an apparatus for continuously producing an artificial marble plate capable of simultaneously and uniformly hardening a raw material compound for an artificial marble plate, preventing the warpage of the artificial marble plate, and improving heat transmission efficiency and productivity.

Abstract: The present invention relates to a method for casting an acryl film, which includes the steps of injecting a material of the acryl film into a space that is formed from a pair of substrates and a gasket positioned between a pair of substrates, and curing the material of the acryl film. The shrinkage ratio of the gasket is not less than 10% after the acryl film is subjected to the curing step, or the shrinkage ratio of the gasket after the acryl film is subjected to the curing step is the same as or larger than the shrinkage ratio of the material of the acryl film.

Abstract: A dope including a polymer and a solvent is prepared. The dope is casted from a casting die (43) to a casting belt (46) with forming a casting bead (100), to form a casting film (69). The decompression chamber (68) is provided behind the casting bead (100). An area including the casting die (43) and the decompression chamber (68) is partitioned as a casting section (105) from other sections by a first partition (102) and a second partition (103). A volume of the casting section (105) is set in a range of 0.80 m3 to 300.00 m3. Inside the casting section (105) is decompressed by a decompression chamber (68) while a fluctuation of air pressure is less than 2.00 Pa. A wind shielding member 101 is provided between the casting die (43) and the decompression chamber (68), to shield wind from behind the casting bead (100).

Abstract: The present invention relates to a porous membrane obtainable by providing a mixture of at least one type of curable monomer and a solvent, applying said mixture to a support, curing said mixture, thereby causing phase separation between the crosslinked monomer and the solvent, subjecting the resulting porous membrane to a washing and/or drying step to remove said solvent and re-curing the porous membrane after drying or partial drying the membrane. The invention further relates to image recording materials, in which these porous membranes are used.

Abstract: A method for manufacturing an optical film comprising the steps of: 1) casting a dope (a solution), prepared by dissolving thermoplastic resin film raw materials in a solvent, from a casting die onto an at least 1.8 m wide belt support, and 2) drying a cast web (a cast film) peeled from the belt support, wherein the belt support has a thickness (Te) at both right and left end portions, of 5-20% less than a thickness (T) of the remaining portion including the transverse center portion of the belt support, provided that the Te indicates a thickness at both right and left end portions, each having a width (We) of 2-25% of a total width (W) of the belt support when viewed from both right and left side edges thereof.

Abstract: Electro-dynamic loudspeakers typically include a diaphragm having a conductor applied to one of its surfaces where the diaphragm is secured to a frame. The conductor is connected to a power supply for providing electrical current through linear traces of the conductor that interact with magnetic fields generated by magnets that are mounted to the frame. The diaphragm is driven by a motive force created when current passes through the conductor within the magnetic field. The electrical current is varied to create an acoustical output from the electro-dynamic loudspeaker. Different methods of attaching the diaphragm are provided for simplifying the manufacturing process and for obtaining a robust electro-dynamic loudspeaker.

Abstract: Described is a method of preparing a cured, non-elastomeric polyurethane-containing film, the method including: (a) providing as a first component a polyurethane material having isocyanate functional groups and having a number average molecular weight of greater than 3000; (b) providing as a second component a material having active hydrogen functional groups that are reactive with isocyanate; (c) combining the first and second components to form a reaction mixture; (d) dispensing the reaction mixture onto a support substrate in a substantially uniform thickness to form an at least partial film thereon; (e) heating the film on the support substrate to a temperature and for a time sufficient to yield a cured film; and (f) removing the cured film from the support substrate to yield a non-elastomeric polyurethane-containing free film.

Abstract: A method of preparing a polyurethane-containing film including: (a) providing as a first component a polyurethane material having isocyanate functional groups; (b) providing as a second component a material having active hydrogen functional groups reactive with isocyanate; (c) combining the first component with a portion of the second component to form a first reaction mixture; (d) allowing the first reaction mixture to react for a time sufficient to increase the viscosity to at least 300 cps; (e) adding the remainder of the second component to the first reaction mixture to form a second reaction mixture; (f) dispensing the reaction mixture onto a support substrate in a substantially uniform thickness to form an at least partial film thereon; (g) heating the film on the support substrate to a temperature and for a time sufficient to yield a cured film; and (h) removing the cured film from the support substrate to yield a non-elastomeric polyurethane-containing free film.

Abstract: A cosmetic applicator is made of a rubber latex foam which has been solidified by microwave irradiation. The foam satisfies (i) a bubble fineness corresponding to 9 bubbles/mm2 or more, (ii) flexibility of 0.7 N/cm2 or less in initial Young's modulus indicated by 50% compressive stress, and (iii) bulk density of 0.14 g/cm3 or less.

Abstract: Dope is cast onto a casting drum to form a casting film. The casting film is cooled on the casting drum to be hardened. The casting film containing a large amount of solvent is peeled as a film from the casting drum. The film is dried in a tenter. Concretely, the film is dried until the residual amount of solvent becomes 60 mass %. Thereafter, the film is further dried by blowing gas at a temperature of at most 105° C. toward the film until the residual amount of solvent becomes 10 mass %. A glass transition temperature of cellulose acylate in the film in which a residual amount of solvent is 10 mass % is denoted by Tg (° C.). The film is subjected to a width increasing process while the temperature of the film is within a range between Tg+10° C. or more and Tg+60° C. or less to obtain a retardation film.

Abstract: A casting film is made by casting dope including polymer and solvent on a casting drum whose surface is cooled. The casting film becomes to have a self-supporting property by cooling solidification, and then peeled as a wet film from the casting drum. The wet film is fed into a pin tenter in which both side edges of the wet film is held by plural pins. The wet film is dried while conveyed through the pin tenter, to become a film. Next, the film having predetermined X-ray diffraction intensity is fed into a clip tenter. While the film whose both side edges are held by clips is conveyed, it is stretched in the width direction thereof at a stretch rate in a range of 15% to 40%, to control molecular orientation in the film.

Abstract: A method of producing a speaker which is manufactured by bonding a plurality of speaker components, including steps of humidifying a joint portion which bonds at least two speaker components among the plurality of speaker components; and bonding the speaker components by humidifying the joint portion and thereafter painting a moisture-curable adhesive on the joint portion, to thereby reduce a time for bonding the speaker components by easily and quickly drying regardless of materials of the speaker components.

Abstract: A method of film fabrication is taught that uses a coating and drying apparatus to fabricate resin films suitable for optical applications. In particular, polycarbonate films are prepared by simultaneous application of multiple liquid layers to a moving carrier substrate. After solvent removal, the polycarbonate films are peeled from the sacrificial carrier substrate. Polycarbonate films prepared by the current invention exhibit good dimensional stability and low birefringence.

Abstract: Improved integrally skinned asymmetric membranes for organic solvent nanofiltration, and their methods of preparation and use are disclosed. Membranes are formed from polyimides by phase inversion and are then crosslinked by addition of amine crosslinking agents that react with the imide groups of the polyimide, creating amide bonds. These stabilise the membranes and allow solvent nanofiltration to be maintained even in the solvents from which the membranes were formed by phase phase inversion.

Abstract: An adhesive injection process for a Pi-joint assembly comprises the steps of: machining at least two ports into a female part of a Pi-joint assembly; inserting a filler into a gap between a male part and the female part; applying a sealant above the filler; creating a vacuum with a vacuum pump at one port; injecting an adhesive through another port; and drawing the adhesive towards the vacuum pump until the gap under the filler is completely filled with the adhesive. The adhesive injection process incorporates lean technologies that enable increased productivity during the assembly of a Pi-joint design using adhesive bonding. The adhesive injection process is suitable for, but not limited to, applications in the aerospace industry, such as the aircraft airframe assembly. The adhesive injection process may be used for the bonding of upper and lower skins to airframe structure as well as for structure-to-structure bonding.

Abstract: A method for manufacturing a composite material is disclosed, and the method includes providing a sheet object, submerging the sheet object in a thermosetting resin to form a compound, rolling up the compound to a hollow formation, stuffing a substance into the hollow compound, and heating up and solidifying.

Abstract: A dope (21) is cast from a casting die (30) onto a casting drum (32) that is moving. The dope forms a bead (21a) between the casting die and the casting drum. Provided downstream from the bead in a casting drum's moving direction is nozzles (61a, 61b) which supply a solidification preventive solution around side ends (22b) of a downstream surface of the bead. On an upstream side of the bead, air pressure is reduced by a decompression chamber (36). Since the bead separates airflow of the upstream side from the downstream side, the solidification preventive solution is not blown in the airflow from the upstream side.

Abstract: A casting dope (11) prepared from CAP, additive and solvent is cast onto a casting belt (35), peeled and dried to be a primary film (14), and wound to a primary film roll (16). After the storage, the primary film (14) is unwound and fed into a tenter device (18). In the tenter device (18), while the stretch in the widthwise direction is performed, a relaxation of the primary film (14) in the longitudinal direction is made. If an extent percentage of the stretch is less than 70% to the predetermined value, the relation is started. The primary film (14) is fed out as a produced polymer film (22) from the tenter device (18), and the polymer film (22) is wound up to a product film roll (24). On the produced polymer film (22), the in-plane retardation increases and the thickness retardation decreases. Thus the optical properties become preferable.

Abstract: A slush moldable composition includes a low density polyethylene resin, propylene-ethylene copolymer, olefin block copolymer, a thermoplastic olefin and silicon oil combination, and an optional pigment. A method for forming a instrument panel skin from the slush moldable composition is provided.

Abstract: A polyimide resin which is soluble in an organic solvent and which has a low coefficient of water absorption, thermosetting properties, high heat resistance and excellent adhesive properties, a method for manufacturing the same, an adhesive and a film each containing the subject polyimide resin and a metal-clad laminate including an adhesive layer composed of the subject polyimide resin are provided. The polyimide resin is a polyimide resin containing a repeating unit represented by the following formula (1) and a repeating unit represented by the following formula (2), with a proportion of a group presented by the following formula (3) being 50% by mole or more of the whole of X.

Abstract: In a casting process of a film production, a casting dope is discharged through an outlet of a casting die. In the casting die, lip plates and inner deckle plates are arranged such that a lower end of each inner deckle plates may be form a protrusion at a side edge of the outlet of the casting die. Each protrusion length from a bottom of the lip plate is at most 9 ?m. Thus the retaining of the casting dope near the outlet through a dope passage in the casting die is reduced, and therefore the skinning doesn't occur in the casting dope.

Abstract: A dope is discharged from a casting die toward a belt to form a film-like material above the belt. Thereby a range near the film-like materials is decompressed by first and second decompression chambers. A pipe connecting each decompression chamber to a pressure controller has an inner diameter from 70 mm to 700 mm, and a length of the pipe is at most 30 m. Further the pipe is provided with a first expansion silencer of expansion silencer and a second expansion silencer of resonance silencer, and a sectional dimension ratio of the first expansion silencer to the pipe is from 5 to 500. Thus a pressure fluctuation in the second decompression chamber and the pipe is reduced and the film-like material becomes uniform. Thus the obtained film has no thickness unevenness, and used for producing a polarizing filter excellent in optical properties and a liquid crystal display.

Abstract: The present invention discloses an approach for making mixed matrix membranes (MMMS) and methods for using these membranes. These MMMs contain a continuous polymer matrix and dispersed microporous molecular sieve particles. This invention also pertains to control of the thickness of the thin dense selective mixed matrix membrane layer that is equal to or greater than the particle size of the largest molecular sieve particles for making large scale asymmetric MMMs. In particular, the invention is directed to making asymmetric flat sheet MMM by a phase inversion technique. The MMMs of the present invention exhibit at least 20% increase in selectivity compared to the polymer membranes prepared from their corresponding continuous polymer matrices. The MMMs of the present invention are suitable for a variety of liquid, gas, and vapor separations.

Abstract: Disclosed is an apparatus for continuous plate formation using belts, in which a polymerizable raw material is fed to one end of a space surrounded by opposed surfaces of two endless belts 1 and 1? facing each other and by gaskets 7 disposed at side edges of these belt surfaces so as to be sandwiched between the surfaces, the polymerizable raw material is polymerized in a section where the belts are heated or cooled with warm water, and a plate-form polymer is taken out of the other end of the space, which contains three or more recovery vessels 13 for recovering the warm water used to heat or cool the belts, and temperature sensing elements (thermometers 14) for measuring the temperature of the warm water recovered in every recovery vessel 13.

Abstract: Side edge portions of a film in which a content of a remaining solvent is at least 30 wt. % are contacted to side parts of first-third rollers with suctioning through suction ducts. Thus a middle portion between the side edge portions is not contacted to the rollers, and the film is transported toward a tenter device in accordance with the rotation of the rollers. In the rollers, each side part of the rollers has a larger diameter of a middle part. At least one of intervals between the neighboring rollers is from 1 mm to 200 mm, and the lapping angle is from 1° to 180°. Toward the middle part of the film, and air is fed in a roller side. The obtained film doesn't have any neither crumples, wrinkle, curl and the like, and foreign materials are hardly adhered. Therefore the continuous film production can be made stably.

Abstract: A co-casting of plural dopes is made to form a casting film (80) of a multi-layer structure having a base layer and at least one outer layer overlapping to the base layer. A viscosity of the dope forming the outer layer is at most 35 Pa·s. Just after the formation of the casting film (80), a drying air is fed out almost in parallel to the belt 73 from an outlet 82a directed in the running direction of the belt (73), while a temperature of the drying air is controlled in the range of 70° C. to 130° C. A heater 84 heats the casting film (83) from a rear side of the belt 73 such that the temperature of a rear surface of the casting film (83) may be controlled in the range of 40° C. to 80° C. Thus the production speed can be increased and the produced film is excellent in planarity.

Abstract: A cyclic polyolefin film, which comprises: a cyclic polyolefin resin; and at least one organic compound decreasing Rth(?) and/or at least one organic compound decreasing Re(?), wherein Rth(?) represents a retardation value (nm) in a thickness-direction of the cyclic polyolefin film at a wavelength of ? nm, and Re(?) represents an in-plane retardation value (nm) of the cyclic polyolefin film at a wavelength of ? nm, wherein the cyclic polyolefin film comprises the at least one organic compound in a content of from 0.01 to 30% by mass based on a solid component of the cyclic polyolefin resin.

Abstract: A process for preparing an optically homogeneous polyvinyl alcohol film having an excellent appearance without forming wrinkles and scratches and causing blocking of the film, the process comprising the steps of forming a polyvinyl alcohol film from a solution of a polyvinyl alcohol resin, and rolling up the film around a cylindrical core, wherein the surface hardness of the rolled up film is set to a Shore A hardness of 60 to 95 measured according to JIS K 6301 under conditions of 25° C. and 55% RH.

Abstract: A mixer for mixing liquid additive with polymer dope constituted by cellulose ester as polymer and solvent is provided. There is a mixing conduit for flow of the polymer dope. A supply conduit ejects liquid additive into the polymer dope in the mixing conduit. A rotor hub is positioned downstream from the supply conduit, contained in the mixing conduit rotatably about an axis directed in a flow direction of the polymer dope, and has a diameter decreasing end on an upstream side. A driving device with electromagnets rotates the rotor hub by electromagnetic induction through a chamber inside the mixing conduit. Furthermore, a support is disposed within the mixing conduit to extend transversely to the flow direction, for supporting the rotor hub rotatably. Flow openings are formed in the support, for passing the polymer dope in the flow direction about the rotor hub.

Abstract: A mixer in a solution casting system mixes liquid additive with polymer dope fed through a flow line and constituted by cellulose ester as polymer and solvent. A mixer housing is in the flow line for passing the polymer dope through to be mixed. A supply conduit causes flow of the liquid additive for addition to the polymer dope. A distribution channel is formed with the supply conduit, positioned in the flow line, for spreading the liquid additive in a transverse direction of a flow passage in the flow line, to eject the liquid additive. A rotor hub is shaped with a decreasing diameter, contained in the mixer housing, opposed to the distribution channel, and directs the polymer dope in a ring shape after addition of the liquid additive. The flow line collects the polymer dope in a position downstream from the rotor hub.

Abstract: Each foreign body removing section extends from a position above a pin plate close to a sprocket to a tenter exit, and is located in close proximity to an edge of a wet film, and has a chamber, a brush roller, an air blow suction head, and an adhesive roller section. By contacting the brush roller with a pin plate positioned above the sprocket, fluctuations in disengaging positions of pins are prevented. An impact caused by disengaging the pins from the wet film is reduced. Thus, foreign bodies, namely burrs separated from the wet film, are reduced. The air blow suction head removes foreign bodies by suction. The adhesive roller section removes the residual foreign bodies. Thus, foreign bodies are securely removed. Covering a disengaging area of the pins with the chamber prevents spreading of foreign bodies into a product area and failures caused by foreign bodies.

Abstract: The invention relates to hybrid membranes that are composed of an organic polymer and an inorganic polymer, a method for producing hybrid membranes, and the use of said hybrid membranes in polymer electrolyte membrane fuel cells. The inventive hybrid membranes comprise at least one alkaline organic polymer and at least one inorganic polymer. Said polymers are blended together at a molecular level. The inorganic polymer is formed from at least one precursor monomer when the membrane is produced. The disclosed membranes are characterized in that the same are provided with high absorptivity for doping agents, have a high degree of mechanical and thermal stability in both an undoped and doped state, and feature permanently high proton conductivity.

Abstract: Solution casting of polymer film (76, 102) is provided. A dope (22, 115-117) containing a polymer of cellulose triacetate and solvent is cast on a casting support band (34, 121) which moves, to form a cast film (69, 122), and then the cast film is stripped from the casting support band and dried, to produce the polymer film. In the solution casting, the cast film is cooled shortly before stripping the cast film from the casting support band. Preferably, a cooling temperature to which the cast film is cooled is set lower than 6 deg. C. The cast film is cooled within a predetermined cooling region, disposed to start at a stripping point for the cast film, and to extend upstream therefrom with a length equal to or less than 25 % of the length of the casting support band. The cast film is blown by cooling gas caused to flow for cooling.

Abstract: Disclosed is a cellulose ester film comprising a polymer prepared by polymerizing at least one ethylenically unsaturated monomer selected from vinyl esters, vinyl esters having a functional group, acrylic esters, and acrylic esters having a functional group, wherein the polymer has a weight average molecular weight of not more than 5,000.

Abstract: Polymer-ceramic mixed matrix compositions contain one or more organic polymers and a nano-sized dispersion of inorganic metal oxide particles which are dispersed throughout the composition. Materials have use in making membranes that act as transfer agents.

Abstract: A dope is prepared from TAC, solvent and the like. The dope is cast from a casting die (31) onto a belt (34) to form a casting film (69). The casting film (69) is peeled as a wet film (74) from the belt (34). The wet film (74) is transported to a tenter device (35), in which both side edge portions are clipped by tenter clips (100). The content of the remaining solvent in the wet film 74 is determined to 100 wt. % on dry basis. The tenter clips (100) (temperature, 40° C.) has a support surface (100a) for supporting the side edge portion of the wet film 74 thereon. A surface tension of the support surface (100a) is 3.1×10?2 N/m, a surface roughness Ra of the support surface (100a) is 0.3 ?m, and a surface hardness of the holding surface (100a) is 700 Hv. Therefore, the adhesion of the foreign materials is reduced. The wet film (74) is dried with stretching in the widthwise direction by the tenter device (35), so as to obtain a TAC film (82).

Abstract: A pipe for supplying a dope to a co-casting die consists of a goose neck portion connected to a feed block of the co-casting die, and a straight pipe portion connected to the goose neck portion. The goose neck portion has a radius of curvature of 50 mm to 400 mm, and the straight pipe portion forms an angle of 0 to 20 degrees to the horizontal plane. Venting valves are opened up at the beginning of dope feeding, and are closed to some extent as the dope comes out. After the air is completely vented out, the venting valves are completely closed. Thereby, an air collection is completely let out from the pipe, a plastic web discharged from die lips of the co-casting die would not contain any air bubbles, it is prevented that the web splashes to put on the die lips, causing streaks on the produced film.

Abstract: A casting die for casting a joint dope constructed of a main dope and a substantial dope has a side plate, an inner deckle plate, an inlet and an outlet. The inner deckle plate has a contact face forming an inner wall of the slot. The first dope is fed through a manifold into a slot connecting the inlet and the outlet. The second dope is fed through a pipe into a passage formed in the inner deckle plate. The passage may be connected to the slit. The inner deckle plate has a partitioning portion for partitioning the second path from the slit. The partitioning portion has an end having acute angle.

Abstract: A camera for capturing a casting bead is provided at each side end of a discharge port in a width direction thereof. Plural speakers are provided at the vicinity of an opening of a decompression chamber. The camera continuously captures the casting bead, and outputs image data thereof to a control unit. The control unit includes a vibration detector and a suppressing vibration generator. The vibration detector detects vibration of the casting bead based on the plural image data. The suppressing vibration generator generates suppressing vibration signal representing the phase and amplitude of the suppressing vibration for suppressing the vibration generated in the thickness direction of the casting bead. The control unit controls the speakers based on the suppressing vibration signal to output sound wave. Thereby, the suppressing vibration is applied to the casting bead.

Abstract: High gas barrier, delamination-resistant polyamide compositions suitable for extended shelf-life packaging applications are provided. Also provided are polyamide compositions exhibiting high oxygen scavenging capability. The polyamide compositions comprise mXDA-IPA containing copolymers which provide excellent properties to the complete polyamide compositions. Also provided are direct blends of the polyamide compositions with other polymers. The polyamide products are particularly suited for producing barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and molded bottles. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical, and health care product packaging applications.

Abstract: The invention relates to a method of making retroreflective sheeting and other articles prepared from casting a fluid synthetic resin onto a tool having a microstructured surface with a slot die apparatus. The invention further relates to a slot die apparatus.